Package org.qubership.atp.mia.repo.impl.pool.ssh

Class SshSessionPool

java.lang.Object

org.qubership.atp.mia.repo.impl.pool.ssh.SshSessionPool

All Implemented Interfaces:

ConnectionPool

@Service
public class SshSessionPool
extends Object
implements ConnectionPool

Field Summary

Fields

Modifier and Type	Field	Description
static int	KEEP_ALIVE_MSG_INTERVAL
static final Map<UUID,Boolean>	systemsForTimeShifting

Constructor Summary

Constructors

Constructor	Description
SshSessionPool(String cleanTimeout, String keepAlive, MiaContext miaContext)	Creates connection pool for SSH connections.

Method Summary

Modifier and Type	Method	Description
void	addTimeShiftSession(Server server, CommonConfiguration configuration)	Adds SystemId and its time shift status, also creates/reopens session.
void	cleanConnectionCache()	Invalidates all free and not executing connection in cache (soft clean).
void	cleanTimeShiftMap()	Removes all not time shifted entities (with false as a key).
SshConnectionManager	getConnection(Server server, String extPrefix)	Checks if there is available connection in Cache.
void	removeTimeShiftSession(Server server)	Removes and closes time shift session.
void	resetCache()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

systemsForTimeShifting

public static final Map<UUID,Boolean> systemsForTimeShifting

KEEP_ALIVE_MSG_INTERVAL

public static int KEEP_ALIVE_MSG_INTERVAL

Constructor Details

SshSessionPool

public SshSessionPool(@Value("${ssh.close.delay:300}")
 String cleanTimeout,
 @Value("${db.server.keep.alive:30000}")
 String keepAlive,
 MiaContext miaContext)

Creates connection pool for SSH connections. After cleanTimeout (seconds) removes ssh connection from cache. Also every cleanTimeout (seconds) performs cleaning connections.

Parameters:

cleanTimeout - after this timeout in seconds cache will be

Method Details

addTimeShiftSession

public void addTimeShiftSession(Server server,
 CommonConfiguration configuration)

Adds SystemId and its time shift status, also creates/reopens session. We avoid recreation of timeShift session on purpose, because establishing such connection requires readiness of both connection sides.

Parameters:

server - - with ssh server credentials.

configuration - - configuration to configure keystore.

removeTimeShiftSession

public void removeTimeShiftSession(Server server)

Removes and closes time shift session.

Parameters:

server - - which session need to remove.

getConnection

public SshConnectionManager getConnection(Server server,
 String extPrefix)

Checks if there is available connection in Cache. If it is then returns already opened connection otherwise creates a new one and overrides old.

Specified by:

getConnection in interface ConnectionPool

Parameters:

server - - object with ssh server credentials.

Returns:

SshConnectionManager which is ready to execute ssh commands.

cleanConnectionCache

public void cleanConnectionCache()

Invalidates all free and not executing connection in cache (soft clean).

cleanTimeShiftMap

public void cleanTimeShiftMap()

Removes all not time shifted entities (with false as a key).

resetCache

public void resetCache()

Specified by:

resetCache in interface ConnectionPool